Shroom and Gloom Growing Confidence Guide
Growing Confidence in Shroom and Gloom looks like an easy way to make a run progressively safer, but the Foresight has an unusual catch: getting maximum value from it means doing something you would normally be cautious about in a deckbuilder. You need to keep adding cards.
The important distinction is exactly where those new cards go. Growing Confidence cares about permanent additions to your deck, not every temporary card that appears in your hand, and understanding that difference makes the Foresight much easier to build around without filling your deck with junk just for a little more health.
Jump To Section:
How Growing Confidence Works
Deck vs. Hand Explained
Don't Take Every Permanent Card
When +2 Max HP Is Worth It
Does Rest Trigger Growing Confidence?
Best Growing Confidence Strategy
Avoid the Biggest Growing Confidence Mistake
Is Growing Confidence Worth It?
Growing Confidence Gives +2 Max HP for Permanent Cards Added to Your Deck
Growing Confidence is a Foresight with a simple effect: whenever you add a permanent card to your deck, you gain 2 Max HP.
The word “permanent” is the important part. Growing Confidence is not rewarding you for playing cards, drawing cards, generating temporary attacks, or simply having more cards appear during a turn. You need an addition that actually becomes part of the relevant deck.
This makes Growing Confidence fundamentally different from normal healing. If you add five qualifying permanent cards over the course of a run, for example, that represents 10 additional Max HP. The benefit compounds as you continue adding qualifying cards, but every one of those additions potentially changes what you can draw as well.
That is where Growing Confidence gets more interesting than its description initially suggests. The question is not simply how many times you can trigger it. The better question is how many times you can trigger it without making the deck itself worse.
Cards Added to Your Hand Are Not the Same as Cards Added to Your Deck
This distinction has caused enough confusion that Team Lazerbeam directly explained the logic behind Growing Confidence.
A card being added to your deck can activate Growing Confidence. A card merely being added to your hand does not.
That means temporary card generation is not automatically a Growing Confidence engine. You cannot assume that an effect creating several cards in your hand is also going to produce several Max HP increases.
An older example given directly by the developer involved Table Manners creating Toothpicks. Those Toothpicks were added to the player's hand rather than the deck, so they did not activate Growing Confidence.
I would use a simple test whenever an interaction is unclear: ask where the new card actually ends up. If an effect is only giving you something temporary to use right now, do not count on Growing Confidence. If you are permanently adding a card to the deck, that is the type of addition the Foresight is designed around.
This also prevents a common mistake when evaluating rewards. “Creates cards” and “adds permanent cards to my deck” may sound similar when you are rapidly reading effects, but for Growing Confidence they are two completely different outcomes.
Don't Take a Bad Permanent Card Just to Trigger Growing Confidence
Growing Confidence creates one of the more interesting deckbuilding conflicts in Shroom and Gloom because it gives an immediate reason to do something deckbuilders normally teach you not to do.
Adding a mediocre permanent card still triggers the Max HP benefit, but you now have a mediocre permanent card in your deck.
That card can occupy a future draw that otherwise could have been one of your better attacks, recovery tools, or combo pieces. Repeat that decision several times and you can end up with substantially more maximum health while simultaneously making your actual deck less reliable.
I would not treat the 2 Max HP as enough to transform a card I actively do not want into a good reward. Instead, Growing Confidence should make cards that were already close decisions more attractive.
If a permanent card genuinely improves the build and also gives you +2 Max HP, that is excellent value. If a card provides useful utility you were missing and comes with +2 Max HP, the Foresight has effectively sweetened an already reasonable addition.
If the only argument for taking a card is “Growing Confidence will trigger,” I would usually be much more skeptical.
This is especially important if your strongest combat sequence depends on finding a small number of specific cards consistently. Maximum health gives you more room for mistakes, but it cannot fix a deck that keeps drawing the wrong cards.
The +2 Max HP Is More Valuable When the Card Also Solves a Problem
The best way to evaluate a Growing Confidence trigger is to stop treating the 2 Max HP and the new card as separate rewards.
Evaluate the complete transaction.
If the card improves your damage and Growing Confidence raises your Max HP, you have improved offense and survivability with one decision. If the card provides an interaction your Explore deck was missing while Growing Confidence gives you another health increase, you have improved utility and survivability.
Those are the triggers I would actively want.
Compare that with adding an effect that duplicates something your deck already handles perfectly well. You still receive the 2 Max HP, but you have spent deck consistency to obtain it.
This gives Growing Confidence a useful middle ground between “take every card” and “ignore the Foresight.” You can become slightly more permissive about borderline permanent additions because every qualifying card has an extra +2 Max HP attached to it, while still rejecting cards that genuinely make the deck worse.
The healthier your deck remains while Growing Confidence scales, the stronger the effect becomes. A bloated deck with a huge health bar has fixed one problem by creating another.
Does Rest Trigger Growing Confidence in Shroom and Gloom?
Rest has historically had a particularly strange interaction with Growing Confidence, although I would be careful about assuming the exact behavior remains unchanged in every Early Access build.
In a September 2025 Steam discussion, a player noticed that Rest was activating Growing Confidence and questioned whether it was supposed to happen. Team Lazerbeam explained that, under the game's logic at the time, Rest added Well Rested to the player's deck. Because the card was being added to the deck rather than directly to the hand, Growing Confidence activated.
The developer contrasted that with Table Manners adding Toothpicks directly to the hand, which did not activate Growing Confidence.
However, Team Lazerbeam also acknowledged that the interaction was confusing and said they would consider how to handle it. Shroom and Gloom has changed considerably since that 2025 discussion, so I would treat the explanation as an extremely useful example of how the deck-versus-hand logic works rather than assuming Rest is a permanent source of Growing Confidence triggers in every current or future version.
If you are testing an interaction yourself, watch what happens to your Max HP and where the generated card is placed. Early Access balance and card behavior can change, but the important underlying distinction remains whether Growing Confidence recognizes the event as a permanent addition to your deck.
The Best Growing Confidence Strategy Is Controlled Deck Growth
I think the strongest way to approach Growing Confidence is controlled growth rather than trying to trigger it at every possible opportunity.
Start with the cards your run actually needs. Establish reliable damage, preserve whatever recovery or utility is keeping the run alive, and look for permanent additions that reinforce those systems. Growing Confidence then turns normal deck development into a secondary Max HP engine.
The ideal situation is essentially getting paid twice for the same decision.
You take a permanent card because you wanted the card, and Growing Confidence adds another 2 Max HP because you took it. Do that repeatedly with good additions and your deck gets stronger at the same time that your health ceiling rises.
The opposite approach is forcing permanent cards into the deck specifically to farm Growing Confidence. You may watch your Max HP steadily climb, but your chances of drawing the exact cards you want can decline at the same time.
This is where normal Shroom and Gloom fundamentals still matter. Our Shroom and Gloom tips guide goes deeper into deck size, exploration, stamina, resting, enemy intent, and planning complete combat turns, but one of the most relevant rules here is that a new card is not automatically an upgrade.
Growing Confidence bends that rule because every permanent card now carries extra health value. It does not completely erase it.
Don't Build Growing Confidence Around Old Exploits
There have been ways to exploit Growing Confidence in older versions of Shroom and Gloom, which makes older community advice particularly risky to follow without checking when it was posted.
One old version allowed a player to interact with a shop payment in a way that could repeatedly trigger the Foresight's Max HP gain. Team Lazerbeam responded to the discovery and later indicated that they did not think the trick would continue working in the then-current version.
That is exactly the kind of Growing Confidence strategy I would avoid building a modern run around.
The Foresight is already useful without relying on an interaction that was effectively an unintended Max HP farm. More importantly, Shroom and Gloom is in Early Access, so a clever interaction found in an old demo or earlier build is especially likely to have changed.
The safer strategy is to understand the underlying trigger and make normal deck decisions around it. Permanent additions are valuable because they can increase your Max HP. Temporary cards created in your hand are different. Anything beyond that should be judged by what the current card text and current build actually do.
If you want to turn those individual card synergies into a complete setup, our Shroom and Gloom best build guide covers how to combine Fatal effects, energy refunds, card draw, food, and focused upgrades into one consistent build.
Is Growing Confidence Worth Using?
Growing Confidence can be very useful, but I would not consider it permission to take every card offered to you.
Its biggest advantage is that it turns something you were probably going to do anyway—adding useful permanent cards—into a source of Max HP scaling. The more legitimate additions your build wants, the more naturally Growing Confidence pays you back.
Its weakness is that maximizing the trigger count and maximizing deck quality are not necessarily the same objective.
That gives me a fairly simple rule for deciding whether to take another permanent card with Growing Confidence active: imagine the +2 Max HP was removed from the choice. If I would definitely take the card anyway, the Growing Confidence trigger is essentially free value. If I would immediately reject the card, 2 Max HP probably should not completely change my mind.
The difficult decisions are cards sitting between those extremes. That is where Growing Confidence is at its best. A situational but useful permanent addition becomes easier to justify because it also increases Max HP, while a genuinely bad addition can still be left behind.
In other words, you do not need to trigger Growing Confidence as often as physically possible. You want to trigger it as often as you can while still liking the deck you are creating.
